Ore-pulverizer.



G. P. GOOD L W. L. MUGULLOUGH.

ORE PULVBRIZER.

APPLIOATION FILED MAR. 17, 190e.

'Patented May 25, 1909.

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G. P. GOOD & W. L. MGGULLOUGH.

ORE PULVERIZER.

APPLICATION FILED MAR. 17, 1906.

922,577. Patenned'may 25, 1909.

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G. P. GOOD W. L. MOCULLOUGH.

ORB PULVERIZER.

APPLICATION FILED MAR.17, 1906.

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GEORGE P. GOOD, OF DETROIT, AND WILLIAM L. MCCULLOUGH, OF YPSILANTI, MICHIGAN, ASSIGNORS TO THE W. L. MCCULLOUGH CO., OF YPSILANTI, MICHIGAN, A CORPORATION OF MICHIGAN.

ORE-PULVERIZER.

ence being had therein to the accompanying drawings.

This invention relates to improvements in machines for reducing minerals, ores, etc., to a pulverized state, and especially to pulverizers particularly adapted to be used in conjunction with amalgamators and similar devices for reducing the ore to a powdered form before it is passed through the amalgamating process.

The object of the invention is to provide a very simple, compact, strong, durable and efficient device for the purpose having disks which are so constructed that the ore will be rapidly and finely pulverized and provided with means whereby the breaking of the disks or frame of the machine is prevented when any foreign substance too unyielding to be pulverized, gets between the disks.

It is also an obj ect of the invention to provide suitable means for adjusting the disks and to provide bearings for the disk shafts particularly adapted to take the heavy end thrust of said shafts and reduce the friction and wear caused by such. end thrust.

A further object of the invention is to provide a chute or hopper for conducting the material to the face of the disks, which hopper is so constructed that it may be accurately adjusted and will prevent the material from getting between its lower edge and the disks and clogging or wearing away the parts; and to provide a machine of the character described having certain other' new and useful features, and the advantages of the particular construction, arrangement and combination of parts, all as hereinafter more fully described, reference being had to the accompanying drawings, in which Figure I is a plan view of a machine embodying the invention with the upper casing removed; Fig. 2, an end elevation of the same with the upper part of the casing in section; Fig. 3, a longitudinal, vertical section, on the line :c-r of Fig. 1; Fig. Al, is an enlarged detail of the adjustable bearing Specification of Letters Patent.

Patented May 25, 1909.

Serial N0. 306,495.

showing the same in plan view with the bearing and adjusting means partially in section; Fig. 5, is a detail showing one of the bracket arms in side elevation; Fig. 6, is a face view of the rotatable thrust-disk; Fig. 7, a vertical section of the same; Fig. 8, is a face view of the stationary thrust-disk; Fig. 9, an edge View of the same; Fig. l0, is a side elevation of the hopper chute detached; Fig. l1 is an edge view of one of the side walls of said chute; Fig. 12, a similar view of the same showing a modified construction; Fig. 13, is an elevation of one of the disks with its cleaner brush shown in perspective in position against the face of said disk; and Fig. 14, is a plan view of a machine of the character described embodying a modified construction.

As shown in the drawing, l are suitable wooden supporting sills to which the cast frame 2 of the machine is secured by bolts and mounted in fixed bearings 3, 4 and a longitudinally adjustable bearing 5 on said frame, is a shaft 6, a similar shaft 7 extending parallel therewith, mounted in laterally adjustable bearings 8, 9 and l() on the frame to be moved toward or from shaft 6.

Secured upon the shafts 6 and 7 are the pulverizing disks 1l each formed with a conical contact face of the same inclination and adapted to turn with their faces close together so that when ore or other mineral is conducted between them it will be rapidly and finely pulverized owing to the peculiar action of the two surfaces upon the ore. The bearings in which the shaft 7 is mounted are so made that they may be adjusted slightly upon the frame to aline the same or vary the distance between the shafts and thus adjust the disks to each other as they wear, suitable adjusting screws 12 being provided to move said bearings accurately, and the shaft 6 is so mounted in its fixed bearings that it may be moved longitudinally therein and its adjustable bearing 5 may be moved to adjust said shaft longitudinally to increase or diminish the space between the contact faces of the disks. This bearing 5 consists of a casting 13 movable longitudinally in guide ways I4 secured to the frame and a cap portion secured by bolts in the usual manner to the bed casting, an abutment l5 formed integral with the bed extending upward at one end of the bearing to which abutment one end of a screw-threaded shaft 16 is secured with its opposite end extending through an opening in a cross bar 17 secured to the outer ends of the parallel brackets 1S by nuts 19 engaging the screw-threaded ends of said brackets. At their opposite ends the'brackets are secured by bolts to the frame and each is formed with a downwardly extending lug 20 to engage the inner side of said frame to strengthen the brackets against a heavy outward thrust upon the cross-bar.

A hand wheel 21 having an internally screw-threaded hub to receive the screwthreaded shaft 16 is provided, and interposed between said wheel and the inner side of the cross-bar is a heavy sleeve 22 of rubber or other yielding material, so that when an unn yielding piece of material gets between the disks, this sleeve will be compressed longitudinally by the heavy end thrust on the shaft caused by the forcing apart of the disks. Breakage is thus avoided and one disk may be quickly adjusted toward or from the other by turning the hand wheel. A suitable ratchet and pawl connection is provided as shown to lockthe wheel in its adjusted position.

The bearing 5 is prevented from moving longitudinally upon the shaft 6 in one direction by forming a groove 23 in the shaft near its end and permitting the Babbitt metal of the bearing to run into said groove. Within the end of the bearing is placed a hardened wear disk 24 against the abutment 15 t0 take the end thrust of the shaft, said disk being held from turning in the bearing by a pin 25 engaging a hole in the bearing cap, and a hardened disk 26 is attached to the end of the shaft to turn therewith, by small pins 27 on the end of the shaft engaging openings in the disk and a reduced end 28 on the shaft engaging an axial recess in one side of said disk. In the adjacent faces of the disks 24, 26 are formed oil grooves 29 extending diametrically across to conduct oil to the faces. The wear and friction caused by the heavy end thrust is thus practically eliminated.

A suitable casing is provided to inclose the disks 11 and adjacent parts, the lower half 30 of which is permanently secured to the frame and provided with a discharge opening or spout 31 at its bottom below the disks, and the upper removable part 32 of said casing is provided with a hopper 33 to conduct the ore into the upper end of the adjustable hopper chute 34 conducting the ore to the contact surfaces of the disks at their point of nearest approach to each other and preventing its lateral escape without passing between said surfaces and being pulverized. Said chute 34 consists of sides 35 each cut away at its lower end to conform to the curve of the periphery of the adjacent disks, and ends 36 adjustably and detachably secured to the sides. by bolts passing through horizontal slots in the ends, each of said ends being also cut away on a slant to conform to the conical or slanting contact face of the disks. This chute is adj ustably supported upon brackets 37 secured to the frame, by arms 38 secured to the sides 35 by bolts passing through vertical slots 39 in the arms, said arms extending outward from said sides to engage the upper ends of the brackets to which they are adjustably secured by bolts passing through longitudinal slots 40 in said arms. The chute may thus be widened or adjusted vertically so that it will conform exactly to the position of the disks.

To prevent the ore from getting between the lower edges of the chute sides and the peripheries of the disks, said curved edges are each formed with a rabbet at the inner angle and within this rabbet is held by a metal strip 41 secured to the inner face of the side, a strip of felt or other suitable material 42 to engage the disk. If desired the metal strip may be dispensed with as shown in Fig. 12 and the felt secured within a groove 43 in the curved edge.

To remove any particles of ore which may adhere to the disks, a fiat or cylindrical brush 44 is supported in contact with the surface of each at its outer side by a suitable bracket bearing 45 adjustably secured to the frame, said bearing receiving one end of the brush 95 shaft which is normally prevented from turning therein by a gravity dog 46 engaging a ratchet wheel 47 on the end of the shaft.

By simply releasing the dog, the brush may be turned to present a new surface to the roll 100 when one place has become worn or the ratchet and pawl connection may be dispensed with and the brush clamped in the bearing.

In Fig. 14 is shown a modified construc- 105 tion, the shafts 6 and 7 instead of being driven by a large pulley 48 on the projecting end of shaft 6 and said shafts geared together by the gears 49, are each provided with a pulley 50 driven by separate belts. In this 110 construction the adjusting hand wheel 2l and yielding sleeve are omitted also and lock nuts 51 are provided on the screw-threaded shaft 16 in engagement with the inner and outer sides of the cross bar 17 to rigidly but 115 adjustably hold the bearing 5 in position.

A machine having this form of adjustment is adapted to be used as the second and third machines where the ore is run through a series of machines to gradually reduce it to a powdered state, the first machine of the series being provided with the yielding sleeve to prevent accidents.

Having thus fully described our invention, what we claim is 1. In a mineral pulverizer, the combination with crushing disks, of cylindrical brushes supported in contact with the contact surface of the disks, a shaft u on which each brush is mounted, a bracket earing to 130 'receive the end of said brush shaft, and means for normally holding said shaft from turning adapted to be released to permit the brush to turn to present a new portion to the surface.

2. In a pulverizer, the combination with the frame, of parallel shafts and disks on said strips of fibrous material secured in said rabbets, ends adjustably secured to said sides, brackets secured to the frame, arms adjustably secured to the sides of the hopper chute and adjustably secured to the upper ends of said brackets.

3. In a mineral pulverizer, the combination with parallel shafts and disks on said shafts having conical contact sides, of a hopper chute adjustably mounted between the disks and consisting of sides formed at their lower edges to conform to the periphery of the disks and provided with a rabbet and ends adjustably secured to the sides formed at their lower ends to conform to the inclination of the conical sides of the disks, strips of fibrous material secured in said rabbets, and plates formed to conform to the periphery of the disks secured to the sides of the hopper chute to hold the fibrous strips in place.

In testimony whereof we afiiX our signatures in presence of two witnesses.

GEORGE P. GOOD. WILLIAM L. MCOULLOUGH.

Witnesses:

HENRY D. SANDERS, RoBT. L. BAILIE. 

